          (with-pre-wrap fileset
                         ;; ensure that only one of the server back ends has been selected, otherwise error
                         (if (not= 1 (+ (if allegrograph 1 0)
-                                       (if blazegraph 1 0)
+                                       ;(if blazegraph 1 0)
                                        (if stardog 1 0)))
                           (throw (IllegalArgumentException.
                                    "Either no or more than one server implementation has been requested. Please select only one.")) true)

                                        :server-url  server-url
                                        :server-impl (cond
                                                       allegrograph "allegrograph"
                                                       blazegraph "blazegraph"
                                                       stardog "stardog")}
                                kb (open-kb params)


         (with-pre-wrap fileset
                        ;; ensure that only one of the server back ends has been selected, otherwise error
                        (if (not= 1 (+ (if allegrograph 1 0)
                                       ;(if blazegraph 1 0)
                                       (if stardog 1 0)))
                          (throw (IllegalArgumentException.
                                   "More than one server implementation has been requested. Please select only one.")) true)
